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WiFi LoRa 32(V3)
$17.90 – $19.90
What's this?
WiFi LoRa 32 is a classic IoT development board widely used in many open-source projects and IoT products.
Description
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Characteristics
1 Reviews
Description
Summary
WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation. Since its launch in 2017, it has been loved by developers and makers. The newly launched V3 version has the same pin sequence as the V2 version and retains Wi-Fi, BLE, LoRa, OLED display, and other functions.
It is the best option for smart cities, farms, homes, industrial control, house security, wireless meter reading, and IoT developers.
Main Features
- Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual-core processor, five-stage pipeline rack Structure, frequency up to 240 MHz).
- SX1262 LoRa node chip.
- Type-C USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures.
- Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching).
- Onboard 0.96-inch 128*64 dot matrix OLED display can be used to display debugging information, battery power, and other information.
- Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal spring antenna, reserved IPEX (U.FL) interface for LoRa use.
- Integrated CP2102 USB to serial port chip, convenient for program downloading, and debugging information printing.
- Support the Arduino development environment.
- With good RF circuit design and low-power design.
Specifications
| Parameters | Description |
|---|---|
| Master Chip | ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor) |
| LoRa Node Chip | SX1262 |
| USB to Serial Chip | CP2102 |
| Frequency | 470~510MHz, 863~928MHz |
| Max. TX Power | 21±1dBm |
| Max. Receiving sensitivity | -134dBm@SF12 BW=125KHz |
| Wi-Fi | 802.11 b/g/n, up to 150Mbps |
| Bluetooth | Bluetooth 5 (LE) |
| Hardware Resource | 7*ADC1 + 2*ADC2; 7*Touch; 3*UART; 2*I2C; 2*SPI; etc. |
| Memory | 384KB ROM; 512KB SRAM; 16KB RTC SRAM; 8MB SiP Flash |
| Interface | Type-C USB; 2*1.25 lithium battery interface; LoRa ANT(IPEX1.0); 2*18*2.54 Header Pin |
| Battery | 3.7V lithium battery power supply and charging |
| Operating Temperature | -20 ~ 70 ℃ |
| Dimensions | 50.2 * 25.5* 10.2 mm |
Description
Pin Map
High light
FAQ
The 2.4GHz antenna is a spring antenna, and there is no additional interface on the board for 2.4GHz wireless signals.
No, the WiFi LoRa 32 don’t have an external PSRAM, if your application need use Bluetooth and Wi-Fi at the same time, you can look into this product: Heltec Wireless Bridge.
- Arduino
- Micro Python
- Platform.io
- Espressif IDE
We strongly recommend using Arduino. We have complete technical support and provide complete LoRaWAN code for ESP32 Arduino framework.
You can find this type of socket by search “SH1.25 x 2”.
Of course, you can contact our sales staff and provide your ideas.
No, the MCU is different.
It’s caused by the meshtastic setting. Changing the default screen to SSD1306 can solve the problem.
The specific steps are as follows:
“Radio configuration”→”Display”→”Override OLED auto-detect”→”SSD1306”
Docs & Resource
- [Resource] — Heltec ESP (ESP32&ESP8266) framework (Include LoRaWAN library)
- [Attachment] — Heltec ESP32 special library
- [Resource] — Hardware Update Logs
- [Attachment] — V3.1 Schematic diagram
- [Attachment] — V3.2 Schematic diagram
- [Attachment] — Datasheet
- [Resource] — User manual and related documents
- [Resource] — Downloadable Resources
Project
Packing list
The default packing list without selecting any accessories is as follows:
| Item | Quantity |
|---|---|
| WiFi LoRa 32 (V3) | x1 |
| LoRa Antenna | x1 |
| SH1.25×2 Battery Connector | x1 |
| 2.54*18 Header Pin | x2 |
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Characteristics
| Weight | 35 g |
|---|---|
| Dimensions | 6.6 × 6.6 × 2 cm |
| LoRa Band | 433MHz, 470~510MHz, 863~870MHz, 902~928MHz |
| Need Plastic Shell? | Yes, No |
trimitsos –
Amazing product, using it in a group team on a common mesh network for offline messaging. And also what a great support for Heltec Team! Thank you!!!